24 



129. PISTACJA TEREBINTHUS, L. 



a. Oleoresin. (Chian Turpentine.") 



b. Ditto, from Professor Guibourt. See Hut. des Drog., t. iii., 



p. 497. Pharmacographia, p. 146. 



130. PlSTACIA VERA, L. 



a. Kernels. (Pistachio Nuts.) See Bentley, Man. Bot., p. 492. 



131. RHUS GLABRA, L. (Smooth Sumach, Pennsylvanian Sumach.) 



a. Fruit. 



Note. The fruit is official in the secondary list of the United States 

 Pharmacopoeia. It is used to make cooling drinks. The acidity of the 

 fruit resides in the pubescence, and is due to malic acid and bimalate 

 of lime. See Wood and Bache, Dispens., p. 710. 



132. RHUS METOPIUM, L. 



a. Gum. (Hog Gum.) 



6. Ditto. Collected from the foot of a tree in the parish of 

 Foreland, Jamaica. 



c. Large specimen. 



Note. It is called Hog Gum because the wild hogs smear their wounds 

 with the gum, by ripping the bark with their tusks, and then rubbing 

 themselves against the tree. It possesses vulnerary properties. When 

 taken internally it acts as a diuretic. See P. J. [1] , vol. v., p. 60 ; vol. 

 vii., p. 270. 



133. RHUS TOXICODENDRON, L. (Poison Oak.) 



a. Leaves. 



Note. Official in the secondary list of the U.S. Pharmacopoeia, and 

 formerly in those of London and Dublin. The plant possesses a vola- 

 tile acrid principle which is lost in drying. The leaves have been used 

 in palsy and cutaneous diseases, and by Homoeopaths for rheumatism. 

 Tincture of lobelia is said to allay the irritation caused by the emana- 

 tions from the plant. The milky juice forms an excellent marking ink. 

 Per. Hat. Med., vol. ii., pt. ii., p. 377. For tincture see P. J. [2], vol. 

 ix;, p. 208. 



134. SEMECARPUS ANACARDIUM, L. 



a. Fruit. (Marking Nuts, Malacca Scans.) 

 Note. The kernels are edible, but the nuts should never be put in the 

 mouth, as the shell contains an extremely acrid oil. This oil forms a 

 permanent marking ink, which is generally brown at first, but may be 

 made to turn black immediately by the addition of ammonia. See 

 Treas. Bot., p. 1047. See Hist, des Drog., t. iii., p. 492, 6ieme Edition. 



135. SPONDIAS LUTEA, L. (Hog Plum Tree.) 



a. Bark. 



Note. The bark is used in tanning. This specimen is from the 

 International Exhibition of 1851, and was contributed by Mr. T. B. 

 Duggin, of Berbice, B. Guiana. P. J. [2], vol. xi., p. 160. 



